
Geometry Of Mobius Transformations: Elliptic, Parabolic And Hyperbolic Actions Of Sl2(r) (With Dvd-rom)
Elliptic, Parabolic and Hyperbolic Actions of SL2(R)(With DVD-ROM)
- 208 pages
- English
- PDF
- Available on iOS & Android
Geometry Of Mobius Transformations: Elliptic, Parabolic And Hyperbolic Actions Of Sl2(r) (With Dvd-rom)
Elliptic, Parabolic and Hyperbolic Actions of SL2(R)(With DVD-ROM)
About this book
This book is a unique exposition of rich and inspiring geometries associated with Mƶbius transformations of the hypercomplex plane. The presentation is self-contained and based on the structural properties of the group SL2(R). Starting from elementary facts in group theory, the author unveils surprising new results about the geometry of circles, parabolas and hyperbolas, using an approach based on the Erlangen programme of F Klein, who defined geometry as a study of invariants under a transitive group action.The treatment of elliptic, parabolic and hyperbolic Mƶbius transformations is provided in a uniform way. This is possible due to an appropriate usage of complex, dual and double numbers which represent all non-isomorphic commutative associative two-dimensional algebras with unit. The hypercomplex numbers are in perfect correspondence with the three types of geometries concerned. Furthermore, connections with the physics of Minkowski and Galilean space-time are considered.
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Information
Table of contents
- Contents
- Preface
- List of Figures
- 1. Erlangen Programme: Preview
- 2. Groups and Homogeneous Spaces
- 3. Homogeneous Spaces from the Group SL2(R)
- 4. The Extended FillmoreāSpringerāCnops Construction
- 5. Indefinite Product Space of Cycles
- 6. Joint Invariants of Cycles: Orthogonality
- 7. Metric Invariants in Upper Half-Planes
- 8. Global Geometry of Upper Half-Planes
- 9. Invariant Metric and Geodesics
- 10. Conformal Unit Disk
- 11. Unitary Rotations
- Epilogue: About the Cover
- Appendix A Supplementary Material
- Appendix B How to Use the Software
- Bibliography
- Index